Percent change in the mean area burned per year (per ~4 km pixel) for each HUC5 watershed between historical (1971-2000) and future (2071-2100) time periods. The MC1 dynamic vegetation model was run under the CSIRO, MIROC, and Hadley climate change projections and the A2 anthropogenic emissions scenario.
Mean area burned per year per ~4 km pixel (in square meters), was determined for each HUC5 watershed. Watersheds represent 5th level (HUC5, 10-digit) hydrologic unit boundaries and were acquired from the Natural Resources Conservation Service.
Background: The
dynamic global vegetation model MC1 (see Bachelet et al. 2001) was used
to simulate vegetation dynamics, associated carbon and nitrogen cycle,
water budget, and wild fire impacts for OR, WA, AZ and NM, for a project
funded by the USDA Forest Service (PNW 09-JV-11261900-003).
The MC1 model was run using historical data and future climate
change projections from three general circulation models: CSIRO Mk3,
MIROC 3.2 medres, and Hadley CM3. Future scenario datasets were
generated through statistical downscaling using a simple anomaly method.
Historical climate input data were
provided by the PRISM group (Chris Daly, Oregon State University) at a 30 arc-second (~800 m) spatial grain.
This project was funded through the U.S. Forest Service by the
American Recovery and Reinvestment Act and also in part by the Western
Wildland Environmental Threat Center.